Publications and Patents

Patents

• Detecting faults in field oriented controlled permanent magnet synchronous machines, Inventor(s): Sandun Kuruppu, US11789081B2

• Method and circuitry for detecting faults in field oriented controlled permanent magnet synchronous machines, Inventor(s): Sandun Kuruppu, US10571522B2

• Detection of an inter-turn winding fault in a motor, Inventor(s): Stephen Fedigan, Sandun Kuruppu, Paul Brohlin, US9973132B2

Journal Publications  (Google Scholar)

• Sachith Wijesooriya, Sandun S Kuruppu. Novel Soft-Start Method for DAB with Active Dead-Time Control. TechRxiv. February 11, 2025. (Preprint)

• Gayan V. Dissanayake, Sandun S. Kuruppu. Extremum Seeking Based Adaptive Compensation of Position Sensor Harmonics in PMSM Drives. TechRxiv. February 03, 2026. DOI: 10.36227/techrxiv.177015411.19900265/v1 (Preprint)

• Ramitha K. Dissanayake, Sandun S. Kuruppu. Selective Self-Calibration of Current Sensor Offset in PMSM Drives. TechRxiv. January 09, 2026. DOI: 10.36227/techrxiv.176799853.36374823/v1 (Preprint)

• Prabath Binduhewa, Sandun Kuruppu . Asymmetric Phase Power Control of Grid-Tied VSCs for Grid Imbalance Compensation. TechRxiv. September 15, 2025. DOI: 10.36227/techrxiv.175790539.94285291/v1 (Preprint)

• Sachith Wijesooriya, Sandun S Kuruppu. Transient Mitigation in Dual Active Bridge Converter Using an Auxiliary Converter with High-Frequency Selective Control for Load Step-Down Condition. TechRxiv. November 11, 2025. DOI: 10.36227/techrxiv.176288094.43817112/v1 (Preprint)

• Ujala Anuradhi Maha Gamage, Sandun Kuruppu. PMSM Position Sensor Offset Calibration Approach in the Presence of Uncalibrated Current Sensors. TechRxiv. September 11, 2025. DOI: 10.36227/techrxiv.175760291.17658589/v1 (Preprint)

• Sachith Wijesooriya, Sandun S Kuruppu. Review of Transient Handling of DABs from an Operational Modes Perspective. TechRxiv. September 09, 2025. DOI: 10.36227/techrxiv.175743227.77565142/v1 (Preprint)

• Ramitha Kalhara Dissanayake, Sandun S Kuruppu . Indirect Extremum-Seeking Control with Sinusoidal Basis Function Combinations. TechRxiv. June 19, 2025. DOI: 10.36227/techrxiv.174345080.05630698/v2 (Preprint)

• Ramitha Kalhara Dissanayake, Sandun Kuruppu. Extremum Seeking MTPA Control of PMSMs through Position Sensor Offset Control. TechRxiv. April 02, 2025. DOI: 10.36227/techrxiv.174362502.20242368/v1 (Preprint)

• R. K. Dissanayake and S. S. Kuruppu, "Demystifying ESC Parameter Impact on Dynamic Response," in IEEE Access, vol. 13, pp. 205097-205109, 2025, doi: 10.1109/ACCESS.2025.3639753. 

• U. Anuradhi Maha Gamage and S. Kuruppu, "Position Sensor Offset Fault Diagnosis in Speed-Regulated PMSM Drives," in IEEE Access, vol. 13, pp. 100572-100586, 2025, doi: 10.1109/ACCESS.2025.3578189. 

• R. K. Dissanayake and S. S. Kuruppu, "Extremum Seeking Approach for Real-Time Self-healing of Position Sensor Offset Error in PMSMs," in IEEE Transactions on Transportation Electrification, doi: 10.1109/TTE.2024.3435349. 

• S.S. Kuruppu, . S.G. Abeyratne, and S. Hettiarachchi, "Modeling and Detection of Dynamic Position Sensor Offset Error in PMSM Drives " in IEEE Access, 2023

• S. S. Kuruppu and S. G. Abeyratne, "Disambiguation of Uniform Demagnetization Fault From Position Sensor Fault in FOC PMSM Applications," in IEEE Access, vol. 10, pp. 103099-103110, 2022, doi: 10.1109/ACCESS.2022.3210178. 

• Karmegam, V., Kuruppu, S. S., Udamulle Gedara, C. M., Biewer, M. C., Stefan, M. C., J. Polym. Sci. 2021, 59( 23), 3040. https://doi.org/10.1002/pol.20210544 

• S. S. Kuruppu, "Open-Loop Self-Calibration of Position Sensor Offset in SM-PMSM Drive Systems," in IEEE Transactions on Instrumentation and Measurement, vol. 70, pp. 1-7, 2021, Art no. 7502007, doi: 10.1109/TIM.2021.3065749. 

• S. S. Kuruppu and Y. Zou, "Static Position Sensor Bias Fault Diagnosis in Permanent Magnet Synchronous Machines via Current Estimation," in IEEE/ASME Transactions on Mechatronics, vol. 26, no. 2, pp. 888-896, April 2021, doi: 10.1109/TMECH.2020.3010898. 

• S. S. Kuruppu and N. A. Kulatunga, "D-Q Current Signature-Based Faulted Phase Localization for SM-PMAC Machine Drives," in IEEE Transactions on Industrial Electronics, vol. 62, no. 1, pp. 113-121, Jan. 2015, doi: 10.1109/TIE.2014.2334652. 

• J. Bandara, S.S. Kuruppu, U.W. Pradeep, The promoting effect of MgO layer in sensitized photodegradation of colorants on TiO2/MgO composite oxide, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Volume 276, Issues 1–3, 2006, Pages 197-202, ISSN 0927-7757, https://doi.org/10.1016/j.colsurfa.2005.10.059.

Conference Publications  (Google Scholar)

• Gayan Dissanayake, and Sandun S. Kuruppu, “Self-Regulating Position Sensor Harmonic Compensation for PMSM Drives”, 2026 Applied Power Electronics Conference (APEC), 2026 

• Thilina Dissanayake, Vandana Rallabandi, Prabath J. Binduhewa, Rafal Wojda, and Sandun S. Kuruppu, “Methodologies for LCL Filter Design: A Comprehensive Analysis”, 2026 Applied Power Electronics Conference (APEC), 2026

• Prabath J. Binduhewa, Sachith Wijesooriya, Ujala Gamage, Gayan Dissanayake, and Sandun S. Kuruppu, “Evaluation of Novel Integrated Charger Inverter Architectures for Electric Vehicles”, 2026 Applied Power Electronics Conference (APEC), 2026

• Ramitha K. Dissanayake, and Sandun S. Kuruppu, “Position Sensor Offset Error Quantification in Extremum-Seeking Self-Healing PMSM Drives”, 2025 IEEE Energy Conversion Congress and Exposition (ECCE), 2025

• Sachith Wijesooriya, Prabath Binduhewa, and Sandun S. Kuruppu, “High Dynamic Bi-Directional Power Flow Control in Galvanically Isolated Motor Drives”, 2025 IEEE Energy Conversion Congress and Exposition (ECCE), 2025

• U. Maha Gamage, Sachith Wijesooriya, Prabath Binduhewa, Jiangbiao He, and Sandun S. Kuruppu, “A Novel Integrated Charger Inverter Topology for EVs”, 2025 IEEE Energy Conversion Congress and Exposition (ECCE), 2025

• R. K. D. Dissanayake, and S. S. Kuruppu, “Flux Observer based Demagnetization Detection Inaccuracy under Position Sensor Faults”, 2024 IEEE Energy Conversion Congress and Exposition (ECCE), 2024

• U. Maha Gamage, and S. S. Kuruppu, “Influence of Machine Parameter Variation on Quantified PSOE in Feedforward Controlled PMSM”, 2024 IEEE International Transportation Electrification Conference (ITEC), Chicago, IL, USA, 2024

• C. Schultz and S. S. Kuruppu, " Mitigation of Position Sensor Offset Error in PMSM Drives via Current Reference Remapping," 2023 IEEE Energy Conversion Congress and Exposition (ECCE), Nashville, TN, USA, 2023.

• B. Halfmann, and S. Kuruppu, "Asymmetric Parameter Influence Analysis in PMSM Position Sensor Offset Error Diagnosis", 2023 IEEE International Machines and Drives Conference (IEMDC), San Francisco, California, 2023

• Y. Zou , J. Damzyn , and S. Kuruppu, "Comparison of SiC MOSFET Thermal Performance Under Different PWM Strategies", 2023 IEEE Applied Power Electronics Conference (APEC), Orlando, Florida

• E. A. Y. G. Edirisinghe, L. T. W. Rajapaksha, S. G. Abeyratne and S. S. Kuruppu, "Analysis and Quantification of Position Sensor Offset Error in Feedforward Controlled PMSMs," 2022 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, USA, 2022, pp. 1-6, doi: 10.1109/ECCE50734.2022.9947942. 

• G. Ray, M. Acosta and S. Kuruppu, "Influence of Asymmetric Sampling Delay on PMSM FOC Drives with Varying Rotor Position," 2022 IEEE Transportation Electrification Conference & Expo (ITEC), Anaheim, CA, USA, 2022, pp. 1259-1265, doi: 10.1109/ITEC53557.2022.9813747. 

• S. S. Kuruppu, "Machine Parameter Error Influence on PMSM Position Sensor Offset Error Quantification," 2022 IEEE International Conference on Electro Information Technology (eIT), Mankato, MN, USA, 2022, pp. 147-152, doi: 10.1109/eIT53891.2022.9813894. 

• S. S. Kuruppu, "Position Sensor Harmonics Influence on Highly Integrated Field Oriented Controlled PMSM Drive Torque Output," 2021 IEEE Transportation Electrification Conference & Expo (ITEC), Chicago, IL, USA, 2021, pp. 427-433, doi: 10.1109/ITEC51675.2021.9490171. 

• S. S. Kuruppu, "Position Sensor Harmonics Influence on Highly Integrated Field Oriented Controlled PMSM Drive Torque Output," 2021 IEEE Transportation Electrification Conference & Expo (ITEC), Chicago, IL, USA, 2021, pp. 427-433, doi: 10.1109/ITEC51675.2021.9490171. 

• S. S. Kuruppu, "In-System Calibration of Position Sensor Offset in PMSM Drives," 2021 IEEE International Electric Machines & Drives Conference (IEMDC), Hartford, CT, USA, 2021, pp. 1-5, doi: 10.1109/IEMDC47953.2021.9449553. 

• S. S. Kuruppu, "Self-Healing of Position Offset Error in Non-Salient PMSMs," 2021 IEEE International Conference on Electro Information Technology (EIT), Mt. Pleasant, MI, USA, 2021, pp. 062-066, doi: 10.1109/EIT51626.2021.9491911. 

• A. Shrestha, R. Mahaju and S. Kuruppu, "Feedback Path Delay Effect on Stability of Controlled PMSMs," 2020 11th IEEE Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON), New York, NY, USA, 2020, pp. 0455-0460, doi: 10.1109/UEMCON51285.2020.9298103.  

• S. S. Kuruppu and Y. Zou, "Post Production PMSM Position Sensor Offset Error Quantification via Voltage Estimation," 2020 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, USA, 2020, pp. 3355-3361, doi: 10.1109/ECCE44975.2020.9235757. 

• S. S. Kuruppu and Y. Zou, "Position Sensor Offset Quantification in PMSM Drives via Current Estimation," 2020 IEEE Transportation Electrification Conference & Expo (ITEC), Chicago, IL, USA, 2020, pp. 99-104, doi: 10.1109/ITEC48692.2020.9161733. 

• S. S. Kuruppu and A. Shibilski, "Clock Variation Impact on Digital Control System Performance," 2019 IEEE 10th Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON), New York, NY, USA, 2019, pp. 0353-0358, doi: 10.1109/UEMCON47517.2019.8992979. 

• A. Shrestha, R. Mahaju and S. Kuruppu, "On Stability of Current Controlled Drives with Delay in Feedback Path," 2019 IEEE 10th Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON), New York, NY, USA, 2019, pp. 0364-0370, doi: 10.1109/UEMCON47517.2019.8993046. 

• Y. Zou, S. Kuruppu, J. He and B. Cao, "Reliability Improvement of Power Inverters for Low-Speed High-Power Motor Drives," 2019 IEEE Applied Power Electronics Conference and Exposition (APEC), Anaheim, CA, USA, 2019, pp. 2620-2626, doi: 10.1109/APEC.2019.8721818. 

• S. S. Kuruppu and A. Shibilski, "Clock Variation Impact on Digital Filter Performance," 2018 9th IEEE Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (UEMCON), New York, NY, USA, 2018, pp. 340-344, doi: 10.1109/UEMCON.2018.8796816. 

• Replacing single-phase ACIMs with three-phase BLDC motors saves energy. SS Kuruppu, JK Rote - Texas Instruments, 2016

• S. S. Kuruppu, K. B. Ariyur and N. A. Kulatunga, "Electric machine vs mechanical brakes for traction control with real time extremum seeking control," IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, Dallas, TX, USA, 2014, pp. 126-132, doi: 10.1109/IECON.2014.7048488. 

• S. S. Kuruppu and N. A. Kulatunga, "Hardware — software hybrid open single phase diagnostic scheme for PMAC machines," IEEE International Conference on Electro-Information Technology , EIT 2013, Rapid City, SD, USA, 2013, pp. 1-5, doi: 10.1109/EIT.2013.6632647. 

• S. S. Kuruppu and N. A. Kulatunga, "D-Q current signature based single winding open fault detection for SM-PMAC machine drives," 2013 International Electric Machines & Drives Conference, Chicago, IL, USA, 2013, pp. 1343-1347, doi: 10.1109/IEMDC.2013.6556310. 

• S. S. Kuruppu and N. A. Kulatunga, "Smart meter based non-intrusive appliance detection algorithm for local real time feedback purposes," IEEE PES Innovative Smart Grid Technologies, Tianjin, China, 2012, pp. 1-5, doi: 10.1109/ISGT-Asia.2012.6303108. 

• N. A. Kulatunga, R. Loetscher and S. Kuruppu, "Smart meter based tools to enhance feedback oriented DSM with time of use rates," 2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe), Gothenburg, Sweden, 2010, pp. 1-8, doi: 10.1109/ISGTEUROPE.2010.5638861. 

• S. G. Abeyratne, S. S. Kuruppu, C. M. Divarathne, D. K. Handapangoda, S. M. A. J. Senevirathne and U. I. Dayaratne, "A self adaptable intelligent battery charger for portable electronics," 2008 IEEE International Symposium on Industrial Electronics, Cambridge, UK, 2008, pp. 1775-1779, doi: 10.1109/ISIE.2008.4677265.